CLASS PERIOD AND BAGEL CLASS PERIOD AND BAGEL SALES SALES 20 20 18 18 16 16 14 14 12 12 10 C. 10 8. 2. 0 12 3 4 5 6 7 8 X- 1 2 3 4 5 6 7 8 0. Class Period Class Period CLASS PERIOD CLASS PERIOD y AND BAGEL AND BAGEL SALES 20 SALES 20 18 18 16 14 16 14 12 10 8. 2. 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Class Period Class Period Number Sold D. Number Sold Number Sold 642
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
Members of the student council are seling bagels during each class period of the school day for a fundrasier. Yu-na made a scatter plot to see if there was a relationship between the class period and the number of bagels sold.
Yu-na draws a line of best fit. Which of these lines is the best model for the data?
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